Potential Abuse for Sending Arbitrary Emails in sp-php-email-handler
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
sp-php-email-handler is a PHP package for handling contact form submissions. Messages sent using this script are vulnerable to abuse, as the script allows anybody to specify arbitrary email recipients and include user-provided content in confirmation emails. This could enable malicious actors to use your server to send spam, phishing emails, or other malicious content, potentially damaging your domain's reputation and leading to blacklisting by email providers. Patched in version 1.0.0 by removing user-provided content from confirmation emails. All pre-release versions (alpha and beta) are vulnerable to this issue and should not be used. There are no workarounds for this issue. Users must upgrade to version 1.0.0 to mitigate the vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Spencer14420 | SPEmailHandler-PHP | before 1.0.0 | 1.0.0 | Patch available | CNA |
| — | spencer14420/sp-php-email-handler (Packagist) | before 1.0.0 | 1.0.0 | Patch available | GHSA-mj5r-x73q-fjw6 |
- SPEmailHandler-PHP VendorSpencer14420 Affected before 1.0.0 Fixed in 1.0.0 Patch available CNA
- spencer14420/sp-php-email-handler (Packagist) Vendor— Affected before 1.0.0 Fixed in 1.0.0 Patch available GHSA-mj5r-x73q-fjw6
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:spencer14420:spemailhandler-php:*:*:*:*:*:*:*:* | — | — | Spencer14420 |
- cpe:2.3:a:spencer14420:spemailhandler-php:*:*:*:*:*:*:*:* Versions — — ·Spencer14420
Remediation
- Fix · CNA SPEmailHandler-PHP (Spencer14420) Fixed in 1.0.0
- Fix · GHSA-mj5r-x73q-fjw6 spencer14420/sp-php-email-handler (Packagist) Fixed in 1.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-53860
- 2026-10-03 Alias added: GHSA-mj5r-x73q-fjw6
References
Sources
- CVE-2024-53860 · CVE Program
- CVE-2024-53860 · NVD
- FIRST EPSS
- GHSA-mj5r-x73q-fjw6 · GitHub Advisory Database · CC BY 4.0
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